Optical fiber preform storage truck

Abstract

The present invention relates to the field of optical fiber preforms, and specifically relates to a storage vehicle for optical fiber preforms, which includes a vehicle frame. A storage unit is provided on the vehicle frame. The storage unit is composed of a plurality of placement mechanisms arranged at equal intervals. A protection mechanism is provided at the position corresponding to each placement mechanism on the vehicle frame. A temperature adjustment pipe fitting for adjusting the temperature of the optical fiber preform is provided between all the protection mechanisms. When the optical fiber preform is in the protection mechanism, the temperature adjustment pipe fitting is in a startup state and the optical fiber preform is in an environment with an appropriate temperature. The present invention stores the optical fiber preform through the placement mechanism and protects the optical fiber preform through the protection mechanism, so that when the optical fiber preform is stored on the vehicle frame, it is ensured that the optical fiber preform will not be damaged. When the vehicle frame moves, it also has a protective effect on the optical fiber preform, avoiding violent shaking of the optical fiber preform during the movement of the vehicle frame and protecting the optical fiber preform from external influences.

Description

[0001] The invention relates to the field of optical fiber preform rods, and in particular to an optical fiber preform rod storage vehicle. Background Art

[0002] The common manufacturing process of optical fiber preform is generally divided into two steps. The first is to use VAD deposition technology to manufacture a thicker diameter optical fiber preform core rod. Since the sintered core rod has a large diameter and is uneven and has a large deviation, it is necessary to extend the core rod into a thinner and uniform diameter core rod through an extension process. After passing the test, handles are connected to both ends of the core rod, and then the finished optical fiber preform is formed through the external deposition and sintering process. Therefore, the quality of the core rod directly determines the quality of the finished optical fiber preform. Before the preform core rod is sent to the OVD workshop for deposition of the outer loose body, the core rod needs to go through multiple processes, including cutting, testing, and handling. , storage and other links, especially during the storage of the core rod, the surface is easily scratched, or because the core rod needs to be flame polished after the handle is connected, the core rod is exposed to the workshop environment after polishing is completed and the deposition begins, it is easy to be contaminated by the floating dust in the workshop. Most of the dust contains silicon components, which is not easy to remove by flame polishing when the loose body is deposited and wrapped. It will remain on the surface of the core rod and mixed with the finished polished rod. Moreover, if the core rod with a higher temperature is exposed to a workshop with a lower temperature too early, the temperature changes rapidly during its cooling process, which is easy to cause stress concentration inside the core rod, increasing the risk of cracking the core rod during the cooling process or during deposition and wrapping.

[0003] The currently disclosed Chinese patent CN201721653996.1 discloses a storage cabinet for optical fiber preform core rods, including a cabinet body, a cabinet door, an exhaust duct, an air filter, a core rod rack, a heating wire and a control display; an open opening is provided on the front side of the cabinet body, and the open opening is used to take out and put the optical fiber preform core rods from the cabinet body, a cabinet door is rotatably arranged corresponding to the open opening, and a core rod rack for placing the optical fiber preform core rods is provided on the inner wall of the rear side of the cabinet body; an air filter connected to the cabinet body is provided on both sides of the cabinet body, an exhaust duct connected to the cabinet body is provided on the upper side of the cabinet body, and heating wires are provided on the inner walls of the upper side, lower side and rear side of the cabinet body, respectively, and the control display is arranged on the outside of the cabinet door, and the control display is controlled and connected to the heating wire.

[0004] According to the above patent, the patent can effectively isolate the core rod that has completed straightening and the handle from environmental pollution and internal defects. However, the patent cannot guarantee the stability of the placement of the optical fiber preform. When the optical fiber preform is moved, it is easy to cause the optical fiber preform to shake, thereby causing damage to it. Therefore, there is a need for a storage vehicle that can stably place the optical fiber preform and provide protection. Summary of the invention

[0005] In view of the problems existing in the prior art, a storage vehicle for optical fiber preforms is provided. In the present invention, the optical fiber preforms are stored by a placement mechanism, and the optical fiber preforms are protected by a protection mechanism, so that when the optical fiber preforms are stored on the vehicle frame, it is ensured that the optical fiber preforms will not be damaged. When the vehicle frame moves, it also has a protective effect on the optical fiber preforms, avoiding violent shaking of the optical fiber preforms during the movement of the vehicle frame and protecting the optical fiber preforms from external influences.

[0006] To solve the problems of the prior art, the technical solution adopted by the present invention is as follows:

[0007] The present invention provides a storage vehicle for optical fiber preforms, including a vehicle frame. A storage unit for placing optical fiber preforms is provided on the vehicle frame. The storage unit is composed of a plurality of placement mechanisms arranged at equal intervals. A protection mechanism for protecting the optical fiber preforms is provided at the position corresponding to each placement mechanism on the vehicle frame. Each placement mechanism is respectively located in the corresponding protection mechanism. A temperature control pipe fitting for adjusting the temperature of the optical fiber preforms is provided between all the protection mechanisms. When the optical fiber preforms are in the protection mechanism, the temperature control pipe fitting is in the starting state and the optical fiber preforms are in an environment with an appropriate temperature.

[0008] Preferably, the protection mechanism is provided with a corrugated pipe. One end of the corrugated pipe is fixedly connected to the top of the vehicle frame, and the lower end of the corrugated pipe extends towards the bottom of the vehicle frame. The protection mechanism is further provided with a top fixing component and a bottom fixing component for fixing the free end of the corrugated pipe. The top fixing component is arranged on the top of the vehicle frame and at the position of the upper end of the corrugated pipe. When the corrugated pipe is in a contracted state, the free end of the corrugated pipe is in a state of being connected to the top fixing component. The bottom fixing component is arranged at the bottom of the vehicle frame and directly opposite to the position of the top fixing component. When the corrugated pipe is in a stretched state, the free end of the corrugated pipe is in a state of being connected to the bottom fixing component.

[0009] Preferably, the placement mechanism is provided with a bottom support component and a top limit component. The bottom support component is arranged at the bottom of the vehicle frame and is located in the bottom fixing component. The top limit component is arranged on the top of the vehicle frame and is located in the corrugated pipe. The position of the top limit component corresponds to that of the bottom support component. When the optical fiber preform is placed between the top limit component and the bottom support component, the optical fiber preform is in a vertically placed state.

[0010] Preferably, an end ring is provided on the outer circle of the free end of the corrugated pipe. A first magnetic ring for connecting to the top fixing component is provided on the upper surface of the end ring, and a second magnetic ring for connecting to the bottom fixing component is provided on the lower surface of the end ring. The end ring is in a coaxial state with the position where the optical fiber preform is placed.

[0011] Preferably, the top fixing component is provided with a fixing seat which is fixedly arranged on the top of the vehicle frame. The fixing seat corresponds to the upper end of the corrugated pipe, and the port at the upper end of the corrugated pipe is in a state of being closed by the fixing seat. A plurality of iron rods are arranged at the edge of the fixing seat. One end of each iron rod is fixedly connected to the fixing seat, and the other end of each iron rod extends vertically downward. The lower end of each iron rod corresponds to the first magnetic ring. When the first magnetic ring contacts the iron rod, the lower end of the corrugated pipe is in a state of being positioned on the fixing seat.

[0012] Preferably, the bottom fixing component is provided with a bottom cylinder which is fixedly arranged at the bottom of the vehicle frame. The bottom cylinder is coaxial with the corrugated pipe. The bottom supporting component is located in the bottom cylinder. An iron ring is fixedly arranged around the edge of the upper end of the bottom cylinder, and the position of the iron ring corresponds to the second magnetic ring. When the second magnetic ring contacts the iron ring, the lower end of the corrugated pipe is in a state of being positioned on the bottom cylinder and the optical fiber preform is located inside the corrugated pipe.

[0013] Preferably, the temperature regulating pipe fitting is provided with a connecting pipe. A connecting pipe is communicated between every two adjacent bottom cylinders. An air port for the connecting pipe to be butted is formed in the bottom cylinder. An air inlet pipe for introducing gas is connected to two of all the bottom cylinders which are close to the edge of the vehicle frame.

[0014] Preferably, the bottom supporting component is provided with a supporting bottom sleeve. The inside of the supporting bottom sleeve fits the low end of the optical fiber preform. The supporting bottom sleeve is arranged directly above the bottom cylinder. A sleeve fixed on the vehicle frame is arranged in the bottom cylinder. A plug rod inserted into the sleeve is arranged on the supporting bottom sleeve. A buffer spring sleeved on the plug rod is also fixedly connected between the supporting bottom sleeve and the sleeve.

[0015] Preferably, the top limiting component is provided with a pressing top sleeve. The inside of the pressing top sleeve fits the top end of the optical fiber preform. The pressing top sleeve is located in the corrugated pipe. A semi-circular strip plate is fixedly arranged on the outer wall of the pressing top sleeve. One end of the semi-circular strip plate is fixedly connected to the pressing top sleeve, and the other end of the semi-circular strip plate extends downward. A fixed guiding sleeve is fixedly arranged in the middle of the semi-circular strip plate. A movable guiding sleeve is movably arranged at the lower end of the semi-circular strip plate. Both the fixed guiding sleeve and the movable guiding sleeve are in a semi-circular ring structure. The opening of the fixed guiding sleeve faces the opening of the semi-circular strip plate. The sleeve openings of the fixed guiding sleeve and the movable guiding sleeve both fit the surface of the optical fiber preform. The movable guiding sleeve can rotate along the circumferential direction on the semi-circular strip plate.

[0016] Preferably, the semi-circular strip plate is provided with positioning pins for fixing the movable guiding sleeve. There are two positioning pins which are symmetrically arranged on both sides of the semi-circular strip plate. Sockets for the positioning pins to be inserted are formed in the semi-circular strip plate. Positioning openings for the positioning pins to be inserted are formed in the movable guiding sleeve. A compression spring sleeved on the positioning pins is also fixedly connected between the positioning pins and the semi-circular strip plate.

[0017] The beneficial effects of this application compared with the prior art are:

[0018] 1. The present invention stores the optical fiber preform through a placement mechanism and protects the optical fiber preform through a protection mechanism, so that when the optical fiber preform is stored on the vehicle frame, it is ensured that the optical fiber preform will not be damaged. When the vehicle frame moves, it also plays a protective effect on the optical fiber preform, avoiding violent shaking of the optical fiber preform during the movement of the vehicle frame, realizing stable storage of the optical fiber preform, and protecting the optical fiber preform from external influences.

[0019] 2. Through the arrangement of the bellows in the present invention, the optical fiber preform can be covered therein. When positioning the bellows, through the arrangement of the top fixing component and the bottom fixing component, when the bellows is contracted, the lower end of the bellows is connected to the top fixing component, and when the bellows is pulled open, the lower end of the bellows is connected to the bottom fixing component, which facilitates the closing and taking out of the optical fiber preform, realizes the protection of the optical fiber preform, and ensures that the optical fiber preform is not affected by the outside.

[0020] 3. Through the clamping of the optical fiber preform by the bottom support component and the top limit component in the present invention, the optical fiber preform is positioned therein, maintaining the storage of the optical fiber preform on the vehicle frame, realizing stable placement of the optical fiber preform, and improving the safety of the storage of the optical fiber preform. Description of the Drawings

[0021] Figure 1 is a three-dimensional structural schematic diagram of the optical fiber preform storage vehicle;

[0022] Figure 2 is a left view of the optical fiber preform storage vehicle;

[0023] Figure 3 is a front view of the optical fiber preform storage vehicle;

[0024] Figure 4 is a three-dimensional structural schematic diagram of the placement mechanism and the protection mechanism of the optical fiber preform storage vehicle;

[0025] Figure 5 is a partial three-dimensional structural sectional view of the placement mechanism and the protection mechanism of the optical fiber preform storage vehicle;

[0026] Figure 6 is a sectional view of the placement mechanism and the protection mechanism of the optical fiber preform storage vehicle Figure 1 ;

[0027] Figure 7 is a three-dimensional structural sectional view of the placement mechanism and the protection mechanism of the optical fiber preform storage vehicle Figure 1 ;

[0028] Figure 8 is a sectional view of the placement mechanism and the protection mechanism of the optical fiber preform storage vehicle Figure 2 ;

[0029] Figure 9 is a three-dimensional structural cross-section of the placement mechanism and the protection mechanism of the optical fiber preform storage vehicle Figure 2 ;

[0030] Figure 10 is Figure 9 an enlarged schematic view of part A of

[0031] The reference numerals in the figure are:

[0032] 1 - vehicle frame; 2 - storage unit; 3 - placement mechanism; 31 - bottom support assembly; 311 - support bottom sleeve; 3111 - insertion rod; 3112 - buffer spring; 312 - sleeve; 32 - top limit assembly; 321 - downward pressure top sleeve; 322 - semi-circular strip plate; 3221 - fixed guide sleeve; 3222 - movable guide sleeve; 323 - positioning pin; 3231 - compression spring; 4 - protection mechanism; 41 - bellows; 411 - end ring; 412 - first magnetic ring; 413 - second magnetic ring; 42 - top fixing assembly; 421 - fixing seat; 422 - iron rod; 43 - bottom fixing assembly; 431 - bottom cylinder; 4311 - air port; 432 - iron ring; 5 - temperature regulating pipe fitting; 51 - connecting pipe; 52 - intake pipe; 6 - optical fiber preform. Embodiment

[0033] To further understand the features, technical means, specific purposes, and functions achieved by the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] Referring to Figures 1 - 5 shown in the figure, the optical fiber preform storage vehicle includes a vehicle frame 1. A storage unit 2 for placing the optical fiber preform 6 is provided on the vehicle frame 1. The storage unit 2 is composed of a plurality of placement mechanisms 3 arranged at equal intervals. A protection mechanism 4 for protecting the optical fiber preform 6 is provided at the position corresponding to each placement mechanism 3 on the vehicle frame 1. Each placement mechanism 3 is respectively located in the corresponding protection mechanism 4. A temperature regulating pipe fitting 5 for regulating the temperature of the optical fiber preform 6 is provided between all the protection mechanisms 4. When the optical fiber preform 6 is in the protection mechanism 4, the temperature regulating pipe fitting 5 is in the starting state and the optical fiber preform 6 is in an environment with an appropriate temperature.

[0035] When placing the optical fiber preform 6, place the optical fiber preform 6 on the storage unit 2. Since the storage unit 2 is composed of multiple placement mechanisms 3, multiple optical fiber preforms 6 can be placed on the vehicle frame 1. The optical fiber preforms 6 are placed in a vertical state, and each placement mechanism 3 corresponds to placing one optical fiber preform 6. A protection mechanism 4 is also provided at each placement mechanism 3. After the optical fiber preform 6 is placed in the placement mechanism 3, the protection mechanism 4 covers the optical fiber preform 6, so that the optical fiber preform 6 is in the protection mechanism 4, preventing the optical fiber preform 6 from contacting the external environment and thus being contaminated by external dust. When the protection mechanism 4 covers the optical fiber preform 6, the temperature control pipe fitting 5 starts to inject appropriate temperature gas into the protection mechanism 4, so that the optical fiber preform 6 is in a constant temperature environment, providing a protection effect for the optical fiber preform 6. When taking the optical fiber preform 6, by opening the protection mechanism 4, the optical fiber preform 6 is exposed, so that the optical fiber preform 6 can be taken out from the placement mechanism 3.

[0036] See Figures 4 - 9 As shown, the protection mechanism 4 is provided with a bellows 41. One end of the bellows 41 is fixedly connected to the top of the vehicle frame 1, and the lower end of the bellows 41 extends towards the bottom of the vehicle frame 1. The protection mechanism 4 is also provided with a top fixing component 42 and a bottom fixing component 43 for fixing the free end of the bellows 41. The top fixing component 42 is arranged on the top of the vehicle frame 1 and at the position of the upper end of the bellows 41. When the bellows 41 is in a contracted state, the free end of the bellows 41 is in a state of being connected to the top fixing component 42. The bottom fixing component 43 is arranged at the bottom of the vehicle frame 1 and at a position directly opposite to the top fixing component 42. When the bellows 41 is in an extended state, the free end of the bellows 41 is in a state of being connected to the bottom fixing component 43.

[0037] After the operator places the optical fiber preform 6 on the placement mechanism 3, the operator uses the protection mechanism 4 to cover the optical fiber preform 6. As the operator uses the protection mechanism 4, the operator separates the lower end of the bellows 41 from the top fixing component 42, and then pulls the bellows 41 from the contracted state until the lower end of the bellows 41 contacts the bottom fixing component 43. At this time, the lower end of the bellows 41 is fixed by the bottom fixing component 43, and the optical fiber preform 6 is covered in the bellows 41. The optical fiber preform 6 is in a state of being isolated from the external environment, preventing it from being affected by the external environment and causing damage or pollution to the bellows 41. When taking the optical fiber preform 6, just separate the lower end of the bellows 41 from the bottom fixing component 43, and then contract the bellows 41 until its lower end contacts the top fixing component 42, so that the optical fiber preform 6 is exposed, and then the optical fiber preform 6 can be taken off from the placement mechanism 3.

[0038] See Figures 4 - 9As shown, the placing mechanism 3 is provided with a bottom support assembly 31 and a top limit assembly 32. The bottom support assembly 31 is arranged at the bottom of the vehicle frame 1, and the bottom support assembly 31 is located in the bottom fixing assembly 43. The top limit assembly 32 is arranged at the top of the vehicle frame 1, and the top limit assembly 32 is located in the bellows 41. The position of the top limit assembly 32 corresponds to that of the bottom support assembly 31. When the optical fiber preform 6 is placed between the top limit assembly 32 and the bottom support assembly 31, the optical fiber preform 6 is in a vertically placed state.

[0039] When the optical fiber preform 6 is placed on the placing mechanism 3, the optical fiber preform 6 is placed between the bottom support assembly 31 and the top limit assembly 32, so that the optical fiber preform 6 is clamped between the two, keeping the optical fiber preform 6 in a vertical state and maintaining the stability of the optical fiber preform 6. When the vehicle frame 1 moves, the optical fiber preform 6 will not fall off.

[0040] See Figures 6 - 9 As shown, the outer ring of the free end of the bellows 41 has an end ring 411. The upper surface of the end ring 411 is provided with a first magnetic ring 412 for connecting with the top fixing assembly 42, and the lower surface of the end ring 411 is provided with a second magnetic ring 413 for connecting with the bottom fixing assembly 43. The end ring 411 is in a coaxial state with the position where the optical fiber preform 6 is placed.

[0041] When the lower end of the bellows 41 is connected to the top fixing assembly 42 and the bottom fixing assembly 43, the first magnetic ring 412 on the bellows 41 contacts the top fixing assembly 42 to realize the connection between the two, and the second magnetic ring 413 on the bellows 41 contacts the bottom fixing assembly 43 to also realize the connection between the two, which is convenient for creating an effective closed environment for the optical fiber preform 6 and also convenient for taking out the optical fiber preform 6.

[0042] See Figures 6 - 9 As shown, the top fixing assembly 42 is provided with a fixing seat 421. The fixing seat 421 is fixedly arranged at the top of the vehicle frame 1. The fixing seat 421 corresponds to the upper end of the bellows 41. The port at the upper end of the bellows 41 is in a state of being closed by the fixing seat 421. The edge of the fixing seat 421 is provided with a plurality of iron rods 422. One end of the iron rod 422 is fixedly connected to the fixing seat 421, and the other end of the iron rod 422 extends vertically downward. The lower end of the iron rod 422 corresponds to the first magnetic ring 412. When the first magnetic ring 412 contacts the iron rod 422, the lower end of the bellows 41 is in a state of being positioned on the fixing seat 421.

[0043] When the bellows 41 is connected to the top fixing component 42, the first magnetic ring 412 on the bellows 41 contacts the iron rod 422 on the fixing seat 421, and the first magnetic ring 412 will be adsorbed on the iron rod 422, thereby positioning the lower end of the bellows 41 on the fixing seat 421, making the bellows 41 in a contracted state. At this time, the optical fiber preform 6 is also in an exposed state, facilitating its removal.

[0044] See Figures 6 - 9 As shown, the bottom fixing component 43 is provided with a bottom cylinder 431. The bottom cylinder 431 is fixedly arranged at the bottom of the vehicle frame 1. The bottom cylinder 431 is coaxial with the bellows 41. The bottom support component 31 is located in the bottom cylinder 431. An iron ring 432 is fixedly arranged around the upper end of the bottom cylinder 431 along its edge. The position of the iron ring 432 corresponds to the second magnetic ring 413. When the second magnetic ring 413 contacts the iron ring 432, the lower end of the bellows 41 is positioned on the bottom cylinder 431 and the optical fiber preform 6 is located inside the bellows 41.

[0045] When the bellows 41 is connected to the bottom fixing component 43, the second magnetic ring 413 on the bellows 41 contacts the iron ring 432 on the bottom cylinder 431, and the second magnetic ring 413 will be adsorbed on the iron ring 432, thereby positioning the lower end of the bellows 41 on the bottom cylinder 431, making the bellows 41 in an expanded state. At this time, the optical fiber preform 6 is inside the bellows 41, enclosed therein and not in contact with the outside world, protecting the bellows 41 from being affected.

[0046] See Figure 1 and Figure 2 As shown, the temperature regulating pipe fitting 5 is provided with a connecting pipe 51. A connecting pipe 51 is communicated between every two adjacent bottom cylinders 431. An air port 4311 for the connecting pipe 51 to dock is opened on the bottom cylinder 431. Two of all the bottom cylinders 431 close to the edge of the vehicle frame 1 are connected with an air inlet pipe 52 for introducing gas.

[0047] After the bellows 41 encloses the optical fiber preform 6 therein, the temperature regulating pipe fitting 5 starts to operate, and gas at a suitable temperature is introduced through the air inlet pipe 52. Since every two adjacent bottom cylinders 431 are communicated through the connecting pipe 51, therefore, as the gas enters, all the bellows 41 will be filled with gas, maintaining a suitable temperature environment in each bellows 41, which is beneficial to the storage of the optical fiber preform 6.

[0048] See Figures 6 - 9As shown, the bottom support assembly 31 is provided with a support bottom sleeve 311. The inside of the support bottom sleeve 311 fits the low end of the optical fiber preform 6. The support bottom sleeve 311 is arranged directly above the bottom cylinder 431. A sleeve 312 fixed to the vehicle frame 1 is provided in the bottom cylinder 431. An insertion rod 3111 inserted into the sleeve 312 is provided on the support bottom sleeve 311. A buffer spring 3112 sleeved on the insertion rod 3111 is also fixedly connected between the support bottom sleeve 311 and the sleeve 312.

[0049] When placing the optical fiber preform 6, place the bottom of the optical fiber preform 6 in the support bottom sleeve 311. As the optical fiber preform 6 is pressed down, the support bottom sleeve 311 moves down in the sleeve 312 through the insertion rod 3111. At this time, the buffer spring 3112 is in a compressed state until the top of the optical fiber preform 6 can be placed in the top limit assembly 32. When moving the vehicle frame 1, the buffer spring 3112 also plays a buffering role for the optical fiber preform 6, avoiding the situation that the optical fiber preform 6 is damaged due to shaking.

[0050] See Figures 6 - 9 As shown, the top limit assembly 32 is provided with a pressing top sleeve 321. The inside of the pressing top sleeve 321 fits the top end of the optical fiber preform 6. The pressing top sleeve 321 is located in the bellows 41. A semi-circular strip plate 322 is fixedly provided on the outer wall of the pressing top sleeve 321. One end of the semi-circular strip plate 322 is fixedly connected to the pressing top sleeve 321, and the other end of the semi-circular strip plate 322 extends downward. A fixed guide sleeve 3221 is fixedly provided in the middle of the semi-circular strip plate 322. A movable guide sleeve 3222 is movably provided at the lower end of the semi-circular strip plate 322. Both the fixed guide sleeve 3221 and the movable guide sleeve 3222 are semi-circular structures. The opening of the fixed guide sleeve 3221 faces the opening of the semi-circular strip plate 322. The sleeve openings of the fixed guide sleeve 3221 and the movable guide sleeve 3222 both fit the surface of the optical fiber preform 6. The movable guide sleeve 3222 can rotate along its circumferential direction on the semi-circular strip plate 322.

[0051] After the top of the optical fiber preform 6 is placed in the pressing top sleeve 321, the optical fiber preform 6 is clamped between the pressing top sleeve 321 and the support bottom sleeve 311. In order to keep the optical fiber preform 6 stable, the optical fiber preform 6 is clamped by the fixed guide sleeve 3221 and the movable guide sleeve 3222. The opening directions of the fixed guide sleeve 3221 and the movable guide sleeve 3222 are opposite, so that the optical fiber preform 6 is clamped between the two, further keeping the optical fiber preform 6 stable. When unlocking the optical fiber preform 6, by rotating the movable guide sleeve 3222, the opening direction of the movable guide sleeve 3222 is made the same as the opening direction of the fixed guide sleeve 3221. At this time, the optical fiber preform 6 can be taken out from it.

[0052] See Figure 9 and Figure 10As shown, positioning pins 323 for fixing the movable guide sleeve 3222 are provided on the semi-circular strip plate 322. There are two positioning pins 323, and the two positioning pins 323 are symmetrically arranged on both sides of the semi-circular strip plate 322. Sockets for inserting the positioning pins 323 are formed on the semi-circular strip plate 322, and positioning ports for inserting the positioning pins 323 are formed on the movable guide sleeve 3222. Moreover, a compression spring 3231 sleeved on the positioning pin 323 is fixedly connected between the positioning pin 323 and the semi-circular strip plate 322.

[0053] When fixing the movable guide sleeve 3222, the optical fiber preform 6 is locked by the positioning pin 323. When the positioning pin 323 locks the optical fiber preform 6, the compression spring 3231 is in a normal state. When the locking state of the movable guide sleeve 3222 is released, the positioning pin 323 is pulled out. At this time, the compression spring 3231 is in a compressed state, and then the movable guide sleeve 3222 can be rotated so that the openings of the movable guide sleeve 3222 and the fixed guide sleeve 3221 face the same direction.

[0054] In the present invention, the optical fiber preform 6 is stored by the placing mechanism 3, and the optical fiber preform 6 is protected by the protection mechanism 4, so that when the optical fiber preform 6 is stored on the vehicle frame 1, it is ensured that the optical fiber preform 6 will not be damaged. When the vehicle frame 1 moves, it also plays a protective effect on the optical fiber preform 6, avoiding violent shaking of the optical fiber preform 6 during the movement of the vehicle frame 1 and protecting the optical fiber preform 6 from external influences.

[0055] The above embodiments only represent one or several implementation manners of the present invention, and the description is relatively specific and detailed, but it should not be construed as a limitation to the scope of the present invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. Optical fiber preform storage vehicle, including a vehicle frame (1), and a storage unit (2) for placing an optical fiber preform (6) is provided on the vehicle frame (1); It is characterized in that The storage unit (2) is composed of a plurality of placement mechanisms (3) arranged at equal intervals, and a protection mechanism (4) for protecting the optical fiber preform (6) is provided at the position corresponding to each placement mechanism (3) on the vehicle frame (1). Each placement mechanism (3) is respectively located in the corresponding protection mechanism (4), and a temperature control pipe fitting (5) for adjusting the temperature of the optical fiber preform (6) is provided between all the protection mechanisms (4). When the optical fiber preform (6) is in the protection mechanism (4), the temperature control pipe fitting (5) is in the startup state and the optical fiber preform (6) is in an environment with an appropriate temperature; The protection mechanism (4) is provided with a corrugated pipe (41). One end of the corrugated pipe (41) is fixedly connected to the top of the vehicle frame (1), and the lower end of the corrugated pipe (41) extends towards the bottom of the vehicle frame (1). The protection mechanism (4) is further provided with a top fixing component (42) and a bottom fixing component (43) for fixing the free end of the corrugated pipe (41). The top fixing component (42) is arranged on the top of the vehicle frame (1) and at the position of the upper end of the corrugated pipe (41). When the corrugated pipe (41) is in the contracted state, the free end of the corrugated pipe (41) is in the state of being connected to the top fixing component (42). The bottom fixing component (43) is arranged at the bottom of the vehicle frame (1) and at the position directly opposite to the top fixing component (42). When the corrugated pipe (41) is in the stretched state, the free end of the corrugated pipe (41) is in the state of being connected to the bottom fixing component (43); The placement mechanism (3) is provided with a bottom support component (31) and a top limit component (32). The bottom support component (31) is arranged at the bottom of the vehicle frame (1), and the bottom support component (31) is located in the bottom fixing component (43). The top limit component (32) is arranged at the top of the vehicle frame (1), and the top limit component (32) is located in the corrugated pipe (41). The position of the top limit component (32) corresponds to that of the bottom support component (31). When the optical fiber preform (6) is placed between the top limit component (32) and the bottom support component (31), the optical fiber preform (6) is in a vertically placed state; An end ring (411) is provided on the outer circle of the free end of the corrugated pipe (41). A first magnetic ring (412) for connecting to the top fixing component (42) is provided on the upper surface of the end ring (411), and a second magnetic ring (413) for connecting to the bottom fixing component (43) is provided on the lower surface of the end ring (411). The end ring (411) is in a coaxial state with the position where the optical fiber preform (6) is placed; The top fixing component (42) is provided with a fixing base (421). The fixing base (421) is fixedly arranged on the top of the vehicle frame (1). The fixing base (421) corresponds to the upper end of the corrugated pipe (41). The port at the upper end of the corrugated pipe (41) is in a state of being closed by the fixing base (421). A plurality of iron rods (422) are arranged at the edge of the fixing base (421). One end of the iron rod (422) is fixedly connected to the fixing base (421). The other end of the iron rod (422) extends vertically downward. The lower end of the iron rod (422) corresponds to the first magnetic ring (412). When the first magnetic ring (412) contacts the iron rod (422), the lower end of the corrugated pipe (41) is in a state of being positioned on the fixing base (421). The bottom fixing component (43) is provided with a bottom cylinder (431). The bottom cylinder (431) is fixedly arranged at the bottom of the vehicle frame (1). The bottom cylinder (431) is coaxial with the corrugated pipe (41). The bottom support component (31) is located in the bottom cylinder (431). An iron ring (432) is fixedly arranged around the edge of the upper end of the bottom cylinder (431). The position of the iron ring (432) corresponds to the second magnetic ring (413). When the second magnetic ring (413) contacts the iron ring (432), the lower end of the corrugated pipe (41) is in a state of being positioned on the bottom cylinder (431) and the optical fiber preform (6) is located inside the corrugated pipe (41).

2. The optical fiber preform storage vehicle according to claim 1, wherein The temperature regulating pipe fitting (5) is provided with a connecting pipe (51). A connecting pipe (51) is communicated between every two adjacent bottom cylinders (431). An air port (4311) for the connecting pipe (51) to be butted is formed on the bottom cylinder (431). An air inlet pipe (52) for introducing gas is connected to two of the bottom cylinders (431) close to the edge of the vehicle frame (1) among all the bottom cylinders (431).

3. The optical fiber preform storage vehicle according to claim 1, wherein, The bottom support component (31) is provided with a support bottom sleeve (311). The inside of the support bottom sleeve (311) fits the low end of the optical fiber preform (6). The support bottom sleeve (311) is arranged directly above the bottom cylinder (431). A sleeve (312) fixed to the vehicle frame (1) is arranged in the bottom cylinder (431). A plug rod (3111) inserted into the sleeve (312) is arranged on the support bottom sleeve (311). And a buffer spring (3112) sleeved on the plug rod (3111) is fixedly connected between the support bottom sleeve (311) and the sleeve (312).

4. The optical fiber preform storage vehicle according to claim 1, characterized in that, The top limit component (32) is provided with a downward pressing top sleeve (321). The inside of the downward pressing top sleeve (321) fits the top end of the optical fiber preform (6). The downward pressing top sleeve (321) is located in the corrugated pipe (41). A semi-circular strip plate (322) is fixedly arranged on the outer wall of the downward pressing top sleeve (321). One end of the semi-circular strip plate (322) is fixedly connected to the downward pressing top sleeve (321), and the other end of the semi-circular strip plate (322) extends downward. A fixed guide sleeve (3221) is fixedly arranged in the middle of the semi-circular strip plate (322). A movable guide sleeve (3222) is movably arranged at the lower end of the semi-circular strip plate (322). Both the fixed guide sleeve (3221) and the movable guide sleeve (3222) are in a semi-circular ring structure. The opening of the fixed guide sleeve (3221) faces the opening of the semi-circular strip plate (322). The sleeve openings of the fixed guide sleeve (3221) and the movable guide sleeve (3222) both fit the surface of the optical fiber preform (6). The movable guide sleeve (3222) can rotate along its circumferential direction on the semi-circular strip plate (322).

5. The optical fiber preform storage vehicle according to claim 4, characterized in that, The semi-circular strip plate (322) is provided with positioning pins (323) for fixing the movable guide sleeve (3222). There are two positioning pins (323), and the two positioning pins (323) are symmetrically arranged on both sides of the semi-circular strip plate (322). Sockets for inserting the positioning pins (323) are formed on the semi-circular strip plate (322). Positioning openings for inserting the positioning pins (323) are formed on the movable guide sleeve (3222). And a compression spring (3231) sleeved on the positioning pins (323) is fixedly connected between the positioning pins (323) and the semi-circular strip plate (322).

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